add_composite_scores    For each latent variable in a structural model,
                        add a composite score to observed data.
add_factor_scores       For each latent variable in a structural model,
                        add an estimated factor score to observed data.
fixed2free              Remove fixed parameters from a lavaan model
get_factor_score_coefficients
                        Return factor score coefficients
get_factor_score_validity
                        Return factor score validity coefficients
get_factor_score_validity_se
                        Return factor score validity coefficient
                        standard errors
get_model_implied_correlations
                        Return model-implied correlation matrix
get_model_names         Return model names
lav2ram                 Extract standardized RAM matrices from a lavaan
                        object
matrix2lavaan           Create lavaan model syntax from matrix
                        coefficients
model_complete          Function that takes a lavaan model with
                        standardized paths and loadings and returns a
                        complete lavaan model syntax with standardized
                        variances
sim_standardized        Generates simulated data with standardized
                        parameters.
sim_standardized_matrices
                        Return model characteristics
